Lighting fixture



M. M. MARKS LIGHTING FIXTURE oct. fr, 1924. 1,510,489

Filed July 14. 1923 Patented @et 7, 19214. y

MYER M. MARKS, DF CI'IIICJIJrO ILLINOIS.

LIGHTING FIXTURE. Y i i Application filed July 14,

To all w/Lo'm, t may concern.'

Be it known thatk I, MYER M. Manns, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Lighting Fixtures, of which the following is a specification.

My invention relates to lighting fixtures, especially shade and globe holders, and the object of the invention is to provide simple and eiificient means for supporting the shade or globe and rendering it readily attachable and detachable. Considerable study has been devoted to the production of mechanism by which the shade may be instantly attached or detached and will be securely '.heldwhen attached. Siol far as I am aware, however, all of these prior mechanisms have left something to be desired, some of them requiring considerableV time to operate;

others depending upon springs or other unsatisfactory elements. My purpose is to render the mechanism operable instantaneously and secure in its holding effect when set.

..25 Another object is to make it possible to obtain these effects when the supported element such as a glass'shade'or globe is closed at the bottom. Still another object is to provide a form of mechanism in which jar or 30 vibration will tend' to keep the locking device in acting position instead of tending to cause it to release the supported element.

I obtain my objects by the mechanism illustrated in the accompanying drawings, in which- Y.

Figure 1 is a central vertical section of a fixture embodying my invention. I Figure 2 is a side elevation looking toward the left Figure 1. A. portionof the shade holder-is broken away to reveal the internal construction. v

. Figure i3 is a bottom plan view of the shade holder showing the locking-device retracted. Y Y

Figure 4 is a perspective view ing device. ,i

ike numerals denote like parts throughout the several views.l

In the form illustrated the body 1 of the shade holder is in the form of a bell shaped canopy, although its `conguration maybe greatly varied without departing from the spirit of the invention. It may be suspended in any suitable manner, for example, by a ring 2 which is centrallyfapertured ofthe locki923. sei-iai No. 651,536.

to accommodate the electric conductors At the bottom of the shade holder body is an annular flange 4 adapted to surround the annular lip or flange 6 of the supported element S. This supported element is usually a globe or shade of glass or other material, and for brevity it may be understood that the terms shade and globe are synonymous so far as the principle of my invention is concerned. 05

It is a common practice in this countrytoday to "provide recessed annular lips or flanged margins on shades and i globes for lighting fixtures, and accordingto my invention the annular flange 4 fits loosely over such lip and prevents horizontal shifting thereof.

In rthe illustrated devices two lugs 10 are secured to the inside of flange 4 and project into the recessy of the lip 6. These are both 175 located on one side ofthe diametral plane of the holder. Cn the opposite side of this plane is a locking device which formsV one of the characteristic elementsof my invention. This consists of a strip of metal having a shank 12 at the upper end. At lthe lower end there is a tongue 14 which is offset yto enable it to pass to the under side ofthe globe, as best shown at the right of Figure 1. This locking device is slidinfrly held in engagement with the canopy or body of the fixture b-y the shouldered pins 20, 21 which are secured to the stem and slide in a vertically arranged slot 22 inthe canopy. The head of the pin 21 is enlarged to'enable it to be grasped by the operator.

The operation will new be'readily understood. Then the globe 8 is in place audit is desired to release itall that is necessary is for the operator to grasp the handle 21 95 and move it upward along slot 22. This will move the tongue 14 from the Vfull line or acting position shown in-Figure 1 to the non-acting position shown in dotted lines. This permits the adjacent jportion `of the upper rim of the globe to be lowered clear of the flange 4 whereupon the globe vmay be moved sideways away from the lugs 10, thus disengagingit from them. To applythe globe the reverse procedure is followed. The 4105 lip 6 is passed over the lugs 1,0 and the opposite side raised upto the position illustrated in Figure 8 the lip then being surroundedr by the flange 4 ofthe canopy or bod-Y 0f. the hOldQlt-.The .locking device 12, :llo

la is then slid downward from dotted line position to full line position Figure l. This locks the globe or shade in place. lt will be observed that the construction is extremely simple and that there is only one moving device, viz., the locking element l2, l-l. This may be made of good size and rugged, and it will not detract from the appearance because it is almost entirely concealed-in fact the entire device presents a neat appearance because the lugs 6 are at all times concealed and the pins 20, 2l are about the Vonly elements which are visible.

characteristic which is of great advantage where my lixture is employed in factories or other industrial. buildings (where there is considerable vibration) is that gravity tends to hold the locking device in acting position. lf it moves at all due to vibration, it will move downward, which is towards locking` position.

ln the form illustrated the holder is bell. shaped, as previously stated. The result is that the tongue in slidingdownward moves also outward and thus slips into a more advantageous position under the shade. In other words in following the curvature of the holder the movement of the locking device is more effective to bring the tongue to a. pointwhere it will safely support the shade.

Having thus described my invention what l claim as new and desire to secure by Letters Patent s:-

l. A shade holder for shades which are open at the top and have an inward projecting rim at the opening in the top, said shade holder having1 means for support-ing the shade, including a member slidably mount-ed upon the inner surface of the shade holder, and adapted to be slid downward and outward to underlie the upper rim of the shade.

2. A shade holder having a flange for encircling the upper rim of an open top shade, and means for engaging and supporting the upper rim of the shade, said means including a member slidably mounted upon the inner side of the shade holder and adapted to pass to the interior of the shade and beneath the upper rim thereof for supporting the shade and for holding the rim thereof between said member and the flange of the shade holder.

8. A shade holder having at one side a member slidably mounted on the inner surface of the shade holder and movable substantially in a vertical plane, and adapted when lowered to pass to the inside of the shade and beneath the upper rim thereof for supporting it and for preventing` the engaged portion of the shade from shifting toward the central vertical aXis of the device, and other means on the shade holder on the opposite side of a diametral plane for engaging and supporting the contiguous portion of the shade. K .Y

A shade holder having avdepending annular tlange for encircling the upper rim of an open top fshade, means on one side of a diametral plane for supporting one side of the shade, and a member on the opposite side of said plane, located within the shade holder and slidably mounted thereon, said member being adapted to pass to the inside of the shade and to extend to a point below the lower rim of the shade holder and below the upper rim` of the shade A shade holder having means on one side of a diametral plane for supporting the holder, and on the other side a tongue which is slidably mounted on the inside of the holder so as to move in a substantially vertical plane, the shade holder being bell shaped whereby the tongue in descending will also move radially outward and thereby furnish arseoure support for its side of the sh-ade.

6. A shade holder havingI means on one side of a diametral plane for supporting the holder, and on the other side a tongue which is slidably mounted on the inside of the holder so as to move in a substantially vertical plane, the shade holder being bell shaped where-by the tongue in descending),- will also move radially outward and thereby furnish a secureV support for its side of the shade, and said tongue passing to the inside of the shade and its lower end descending to a point lower than the lower rim of the shade holder.

T, A shade holder which is approximately bell shaped having means on one side of a diametra-l plane for engaging the shade, and on the other side, within the' shade holder, a tongue which is slidable substantially in a vertical plane, the lower end when lowered being beneath the lower rim 'of the shade holder and outside of its greatest diameter, whereby said tongue when lowered may pass to the inner side of and beneath the upper rim of the shade for supporting it.

8. A shade holder which is approximately bell shaped having means on one side of a diametral plane for engagii'ig and supporting the shade, and on the other side"` within the shade holder, a tongue which is slid.- able substantially in a vertical plane, the lower end when lowered being beneath the lower rim of the' shade holder and outside of its greatest diameter, whereby said tongue when lowered may pass to the inner side of the shade for supporting it, the shade holder havingI a slot arranged in a substantially vertical plane and the tongue having a handle protruding out through said slot.

ln witness whereof, I have hereunto subscribed my name.

nvr-nv Manns,I 

